// jdbcsh - An interactive shell for JDBC databases
// Copyright (C) 2007 Dan Boitnott
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

package jdbcsh;

import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;

/**
 *
 * @author Dan Boitnott
 */
public class ResultSetTable implements Table {
    private ResultSet res;
    private ResultSetMetaData meta;
    
    public ResultSetTable(ResultSet r) {
        try {
            res = r;
            meta = r.getMetaData();
        } catch (SQLException ex) {
            throw new RuntimeException(ex);
        }
    }
    
    public int getColumnCount() {
        try {
            return meta.getColumnCount();
        } catch (SQLException ex) {
            throw new RuntimeException(ex);
        }
    }

    public int getColumnDisplaySize(int column) {
        try {
            return meta.getColumnDisplaySize(column + 1);
        } catch (SQLException ex) {
            throw new RuntimeException(ex);            
        }
    }

    public String getColumnLabel(int column) {
        try {
            return meta.getColumnLabel(column + 1);
        } catch (SQLException ex) {
            throw new RuntimeException(ex);            
        }
    }

    public String getString(int column) {
        try {
            String ret = res.getString(column + 1);
            if (res.wasNull()) return null;
            return ret;
        } catch (SQLException ex) {
            throw new RuntimeException(ex); 
        }
    }

    public boolean next() {
        try {
            return res.next();
        } catch (SQLException ex) {
            throw new RuntimeException(ex);
        }
    }

}
